Question

efetue 5/48 + 7/60 9/50 +7/60 5/48+9/50+7/60

Answer 1

Olá...

a)

5/48 + 7/60 ⇒ mmc  de ( 48, 60) = 240

25 + 28/240

53/240

b)

9/50 + 7/60⇒mmc de (50, 60) = 300

54 + 35/300

89/300

c)

5/48 + 9/50 + 7/60 ⇒o mmc = ( 48, 50, 60) = 1200

125 + 216 + 140/1200

481/1200

Espero ter ajudado.